Gas mileage dropping, worried something mechanical.

[Two Dogs]

Calculated mpg or dash mpg?

 

[cddawgs]

Calculated. I wasn’t university material but this I Can do. Dash has changed from 14+ only once and that was to 16. Wierd. But calculated has been a steady decline.

 

[Two Dogs]

I don't know for sure on the raptor, but the first place I go when mpg tanks is plugs. Plus its easy to check.

Edit: Did you check/change your air filter? These turbos like to feed.

 

[cddawgs]

I did not, and will. Thanks.

 

[Truckzor]

Run some techron through it and clean your MAF/MAP sensors.

 

[SL75]

I don't know for sure on the raptor, but the first place I go when mpg tanks is plugs. Plus its easy to check.

Edit: Did you check/change your air filter? These turbos like to feed.

That is a good point. Spark plug change will probably fix this. Curious what the stockers look like.

 

[cddawgs]

filter and plugs clean. Dealership said the engine is still "breaking in" and mileage will vary till around 10. Wondering am I enjoying the turbo gauge a bit much? Oh well, thats why they put em on. I appreciate everyone's responses. I'll come back in about 2 tanks and let y'all know.

 

[xrocket21]

change your plugs!

edit: 5k miles only? Hammer on that bitch and clean the carbon out. When was the last time you hit redline?

 

[cddawgs]

know what?? You got a point. Gonna hit a long stretch of 475 in a while, I'll air it out. But I got scared around 110 and it Has been awhile.

 

[EricM]

Might be brakes dragging, or the wheel bearing as mentioned. A bad unit bearing on my SHO cost me 3 MPG.